Paired with the optional tuning kit utilizing e-Manage Ultimate, plug-n-play harness, fuel system upgrade, and true dual 70mm Turbo Ti-C exhaust system, it is a fearsome street machine harnessing 452 wheel horsepower and 344lb-ft of torque. With additional engine work and tuning, this tuner kit has the potential of making 850 plus horsepower just as we were able to achieve on the GReddy Twin Turbo 350Z HR.